Gasolene-lamp.



No. 794,972. PATENTED JULY 18, 1905. B. A. ESTEP.

GASOLENE LAMP.

APPLIOATION FILED APR, 30, 1904.

2 SHEETS-SHEET 1.

1mm a arc/nun m Mommas Imam. nc

PATENTBD JULY 19, 1905.

B. A. ESTEP. GASOLENE LAMP.

APPLICATION FILED APR. 30, 1904.

2 SHEETS-SHEET 2.

@Bmafyg and is supported by a suitable base a.

UNITED STATES Patented July 18, 1905.

PATENT OFFICE.

BLAIR A. ESTEP, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALETO JOHNHALIHAN, OF SAGINAWV, MICHIGAN.

GASOLENE-LAMP.

SPECIFICATION forming part of Letters Patent NO. 794,972, dated July 18,1905.

Application filed April 30, 1.904:- Serial No- 205,842.

T0 at whom, it may concern.-

Be it known that I, BLAIR A. EsTEP, acitizen of the United States, and aresident of Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Gasolene-Lamps, of whichthe following is a full, clear, and exact description.

My invention relates to gasolene pressurelamps. Heretofore the tanks ofthese lamps have been arranged in such a position that, considering thesize it is necessary to make them in order to hold suffici'ent oil, theycast a very large shadow. As heretofore constructed the burner of theselamps had to be separated from the tank by a sinuous pipe in order toaccommodate the presence of the cleaning-needle valve thereof, and thusdeprive the tank of the benefit of the heat generated in the burner topromote the generation of gas. The object of my invention is to overcomethese objections. This I accomplish in a simple and effective manner,substantially as hereinafter fully described and as particularly pointedout in the claims.

In the drawings, Figure 1 is a front elevation of a gasolene-lampembodying my invention, having the upper portion of the hanger thereofbroken away. Fig. 2 is a side elevation of the same. Fig. 3 is avertical transverse section of the burner separated from the tank anddrawn to an enlarged scale. Fig. 4 is a horizontal transverse sectiontaken on dotted line 4 4:, Fig. 3, looking in the direction indicated bythe arrows. Fig. 5 is a front elevation in detail of the cylindricalpiston employed to admit gas into the combustion-chamber.

Referring to the drawings, A represents a circular or othersuitably-shaped tank, which stands on edge, as shown in the drawings,The front of this tank has a suitable elbow Z) projecting therefrom,which has a suitable pressure-gage B secured to the end of its verticalbranch, and preferably at a point above this pressure gage the walls ofthe tank are pierced by and have secured therein an ordinaryvalve-controlled air-inlet C. The tank 5 O has a suitable plugged inlet0, through which the gasolene is supplied thereto, extending through therear side thereof, and the gasolene thus supplied to said tank is forcedup by the air-pressure through the pipe 0Z into the screw-threaded stude of the burner, which latter is tapped into the circumference of thetank at a point opposite and in alinement with the center of the base ofthe same. The burner D consists of a suitable casting extendingvertically upward in alinement with the stud e, which is provided at asuitable point above the tank with two diametrically oppositelaterally-projecting arms E and F, the latter of which is preferablyslightly longer than the former. The upper part is drilledlongitudinally and centrally from its upper end to form acombustion-chamber L, and it has lateral openings or air-ports 7" at itslower end and has seated in its rabbeted upper edges a wire-gauze cap M.The longer arm E has a longitudinal central passage f drilled orotherwise made therein, which extends from its outer end into thevertical portion of the burner D, and this passage f communicates withthe upper end of the bore of the stud e by means of the passage 9,extending centrally through-the brace g, connecting said arm E and saidstud, substantially as shown in the drawings. The communication betweenpassages f and g is controlled by a screw-threaded spindle-valve H,whose conical end is adapted to engage a corresponding seat at theconfluence of said passages, and this valve H extends longitudinally andcentrally out through a gland-nut 71. at the outer packed end of arm Eand is manipulated by a suitable milled wheel on its extremity.

The inner end of the passage f strikes into the lower end of a verticalpassage I, that extends to and communicates with an annular chamber inthe upper end of the burner D. At a point diametrically opposite thepassage I said burner is provided with a vertical passage K, extendingdownward therefrom, which has its lower end extended horizontally anddiametrically into the longitudinal central vertical gas-chamber 7c inthe burner. This chamber 76 is made by drilling a smaller hole into thebody of the burner below the c0mbustion-chamber and in alinement there-3 of the tip and keeps the same clean.

with, and it extends from a point preferably below the plane of the armsE and F up into said central combustion-chamber. The upper end of thegas-chamber 7a is closed by the tip m up through a very small centralorifice in which the gas is forced into the combustionchamber L. Seatedin the lower portion of the chamber K is a cylindrical piston n of suchlength that when at the limit of its downward movement thedischarge-opening of the passage k will be uncovered. This piston hasextending centrally from the apex of its upper conical end a needle 0,which as said piston moves to the limits of its upward throw projectsthrough the central discharge-orifice This piston n has one side thereoffacing the arm F of the burner flattened in a plane transverse to theaxis of said arm, and about the center of length of this flattenedportion it is provided with a transverse recess '1", which'is en- -gagedby the eccentrically-located stud R, extending from the adjacent end ofthe transverse shaft S, which latter is journaled in to assist in thevolatilizing of the gasolene therein.

the bore of arm F and has its outer reduced end extend out through asuitable packingchamber in the end of said arm and through a suitablegland-nut T and is provided with a suitable milled wheel m on its outerend with which to turn the same. When this wheel as is in the positionshown in Fig. 3, the piston will be at the lower limit of its movementand by giving said wheel a half turn or revolution limit of its upwardmovement. This recipfirst started, and likewise the heat transmitted tothe burner by the burning of the gas from the et to be imparted to pipe(i into the tank By placing the tank A endwise, as hereinbeforedescribed and shown, the light from the burner is not obstructed to theextent it .would be were the flattened sides of the tank in a horizontalposition, and a much greater area below said lamp is made light than isnow possible.

What I claim as new is- 1. A gasolene-lamp comprising a suitable .burnerhaving a straight body from the tank of said lamp to the upper end ofthe same; a

longitudinal central gas-chamber; a combustion-chamber; a sinuouspassage from the tank to said gas-chamber on the exterior of saidcombustion-chamber; a valve controlling the inlet portion thereof; aheating-chamber consisting of an annular enlargement of said passagemediate said valve and gas-chamber,

surrounding the upper portion of the walls of the combustion-chamber; incombination with a longitudinally-movable piston in said gaschamber; aneedle secured in and extending from the upper end thereof, adapted topenetrate the discharge-orifice in the end of the same farthest fromsaid tank; and means for actuating said piston.

2. A gasolene-lamp comprising a suitable burner having a straight bodyfrom the tank of said lamp to the upper end of the same; a longitudinalcentral gas-chamber; a combustion -chamber; a sinuous passage from thetank to said gas-chamber on the exterior of said combustion-chamber; avalve controlling the inlet portion thereof; a heating-chamberconsisting of an annular enlargement of said passage mediate said valveand gas-chamber, surrounding the upper portion of the walls of thecombusti0n-chamber; in combination with a longitudinally-movable pistonin said gaschamber; a needle secured in and extending from the upper endthereof, adapted to penetrate the discharge-orifice in the end of thesame farthest from said tank; and laterallydisposed means for actuatingsaid piston.

3., A gasolene-lamp comprising a suitable burner having a straight bodyfrom the tank of said lamp to the upper end of the same; a longitudinalcentral gas-chamber; a combustion-chamber; a sinuous passage from thetank to said gas-chamber on the exterior of said combustion-chamber; avalve controlling the inlet portion thereof; a heating-chamberconsisting of an annular enlargement of said passage mediate said valveand gas-chamber,

' surrounding the upper portion of the walls of the combustion-chamber;in combination with a longitudinally-movable piston-in said gaschamber;a needle secured in and extending from the upper end thereof, adapted topenetrate the discharge-orifice in the end of the same farthest fromsaid tank; anda laterallydisposed rotatable spindle operativelyconnected to and actuating said piston.

4. A gasolene-lamp comprising a suitable burner having a straight bodyfrom the tank of said lamp to the upper end of the same; a longitudinalcentral gas-chamber; acombustion-chamber; a sinuous passage from thetank to said gas-chamber on the exterior of said combustion-chamber; avalve controlling the inlet portion thereof; a heating-chamberconsisting of an annular enlargement of said passage mediate said valveand gas-chamber, surrounding the upper portion of the walls of-thecombustion-chamber; in combination with a longitudinallymiovable pistonin said gas chamber having a transverse groove therein mediate its ends;a needle secured in and extending from the upper end thereof, adapted topenetrate the discharge-orifice in the end of the same farthest fromsaid tank; and a laterally-disposed rotatable spindle having aneccentrically-located stud extending from its end adjacent to saidpiston which engages said groove.

5. A gasolene-lamp comprising a suitable burner having a straight bodyfrom the tank of said lamp to the upper end of the same; a longitudinalcentral gas-chamber; a combustion-chamber; a sinuous passage from thetank to said gas-chamber, on the exterior of said combustion-chamber; avalve controlling the inlet portion thereof; a heating-chamberconsisting of an annular enlargement of'said passage mediate said valveand gas-chamber, surrounding the upper portion of the Walls of thecombustion-chamber; in combination With a longitudinally-movable pistonin said gas-chamber having a portion of its side flattened and having atransverse groove therein mediate 1ts ends; a needle secured 1n andextending from the upper end thereof, adapted to penetrate thedischarge-orifice in the end 2 BLAIR A. ESTEP.

Witnesses:v

FRANK D. THoMAsoN E. K. LUNDY.

